The type of animal that lays eggs includes birds, reptiles, amphibians, insects, and several species of fish. Egg-laying, or oviparity, is a reproductive strategy where females produce eggs that develop externally. Birds are perhaps the most widely recognized egg-laying animals, with various species exhibiting unique nesting behaviors and diverse egg sizes and colors. Reptiles like turtles and snakes also lay eggs on land, while amphibians, such as frogs, typically lay eggs in water. Insects, including butterflies and bees, produce eggs that hatch into larvae. This reproductive strategy allows for a wide range of adaptations and increases the chances for species' survival in various environments.